2 NNCP -- Node to Node copy, utilities for store-and-forward data exchange
3 Copyright (C) 2016-2021 Sergey Matveev <stargrave@stargrave.org>
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, version 3 of the License.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>.
30 "golang.org/x/sys/unix"
36 Neigh map[NodeId]*Node
37 Alias map[string]*NodeId
46 NotifyFile *FromToJSON
47 NotifyFreq *FromToJSON
48 NotifyExec map[string]*FromToJSON
51 MCDTxIfis map[string]int
54 func (ctx *Ctx) FindNode(id string) (*Node, error) {
55 nodeId, known := ctx.Alias[id]
57 return ctx.Neigh[*nodeId], nil
59 nodeId, err := NodeIdFromString(id)
63 node, known := ctx.Neigh[*nodeId]
65 return nil, errors.New("Unknown node")
70 func (ctx *Ctx) ensureRxDir(nodeId *NodeId) error {
71 dirPath := filepath.Join(ctx.Spool, nodeId.String(), string(TRx))
72 logMsg := func(les LEs) string {
73 return fmt.Sprintf("Ensuring directory %s existence", dirPath)
75 if err := os.MkdirAll(dirPath, os.FileMode(0777)); err != nil {
76 ctx.LogE("dir-ensure-mkdir", LEs{{"Dir", dirPath}}, err, logMsg)
79 fd, err := os.Open(dirPath)
81 ctx.LogE("dir-ensure-open", LEs{{"Dir", dirPath}}, err, logMsg)
91 quiet, showPrgrs, omitPrgrs, debug bool,
93 env := os.Getenv(CfgPathEnv)
97 if showPrgrs && omitPrgrs {
98 return nil, errors.New("simultaneous -progress and -noprogress")
100 cfgRaw, err := ioutil.ReadFile(cfgPath)
104 ctx, err := CfgParse(cfgRaw)
109 env = os.Getenv(CfgSpoolEnv)
114 ctx.Spool = spoolPath
117 env = os.Getenv(CfgLogEnv)
122 ctx.LogPath = logPath
127 if quiet || omitPrgrs {
128 ctx.ShowPrgrs = false
135 func (ctx *Ctx) IsEnoughSpace(want int64) bool {
137 if err := unix.Statfs(ctx.Spool, &s); err != nil {
140 return int64(s.Bavail)*int64(s.Bsize) > want
143 func (ctx *Ctx) Umask() {
144 if ctx.UmaskForce != nil {
145 syscall.Umask(*ctx.UmaskForce)